noun
- Extinct primitive toothed bird with a long feathered tail and three free clawed digits on each wing. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). archaeornis. Retrieved September 23, 2026, from http://smartdefine.org/archaeornis/definitions/1322243 |
| Chicago | WordNet. 2010. "archaeornis" http://smartdefine.org/archaeornis/definitions/1322243 (accessed September 23, 2026). |
| Harvard | WordNet 2010, archaeornis, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/archaeornis/definitions/1322243>. |
| MLA | WordNet. "archaeornis" 23 October 2010. Web. 23 September 2026. <http://smartdefine.org/archaeornis/definitions/1322243> |